Restful framework【第四篇】视图组件

目录

• 基本使用
• 基本视图
• mixin类和generice类编写视图
• 使用generics 下ListCreateAPIView,RetrieveUpdateDestroyAPIView
• 使用ModelViewSet

 

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基本使用#

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-view的封装过程有空可以看一下 -ViewSetMixin     # ViewSetMixin 写在前面,先找ViewSetMixin的as_view方法     # 用了ViewSetMixin ,视图类中,不需要再写get,post,delete....这些函数了,函数名可以自定义     # 而且这个视图类,可以响应多条路由           　　-使用:     -urls.py中         url(r'^publishs/', views.PublishView.as_view({'get': 'aaa','post':'ddd'})),         url(r'^bbb/', views.PublishView.as_view({'get': 'bbb','post':'ccc'})),                       -视图类中:         class PublishView(ViewSetMixin,APIView):   #注意这里类的顺序，ViewSetMixin写在前面             def aaa(self,request):                 return Response({'status':100})             def bbb(self,request):                 return Response({'bb': "bbb"})

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基本视图#

写一个出版社的增删查改resful接口

路由：

url(r'^publish/$', views.PublishView.as_view()),
url(r'^publish/(?P<pk>\d+)/$', views.PublishDetailView.as_view()),

视图

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class PublishSerializers(serializers.ModelSerializer):     class Meta:         model=models.Publish         fields='__all__'   class PublishView(APIView):       def get(self, request):         publish_list = models.Publish.objects.all()         bs = PublishSerializers(publish_list, many=True)         # 序列化数据           return Response(bs.data)       def post(self, request):         # 添加一条数据         print(request.data)           bs=PublishSerializers(data=request.data)         if bs.is_valid():             bs.save()  # 生成记录             return Response(bs.data)         else:               return Response(bs.errors)   class PublishDetailView(APIView):     def get(self,request,pk):         publish_obj=models.Publish.objects.filter(pk=pk).first()         bs=PublishSerializers(publish_obj,many=False)         return Response(bs.data)     def put(self,request,pk):         publish_obj = models.Publish.objects.filter(pk=pk).first()           bs=PublishSerializers(data=request.data,instance=publish_obj)         if bs.is_valid():             bs.save() # update             return Response(bs.data)         else:             return Response(bs.errors)     def delete(self,request,pk):         models.Publish.objects.filter(pk=pk).delete()           return Response("")

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mixin类和generice类编写视图#

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from rest_framework.mixins import CreateModelMixin,RetrieveModelMixin,ListModelMixin,UpdateModelMixin,DestroyModelMixin from rest_framework.generics import GenericAPIView<br> class PublishView(ListModelMixin,CreateModelMixin,GenericAPIView):     queryset=models.Publish.objects.all()     serializer_class=PublishSerializers       def get(self, request):         return self.list(request)       def post(self, request):         return self.create(request)   class PublishDetailView(RetrieveModelMixin,UpdateModelMixin,DestroyModelMixin,GenericAPIView):     queryset=models.Publish.objects.all()     serializer_class=PublishSerializers<br>     def get(self,request,*args,**kwargs):         return self.retrieve(request,*args,**kwargs)     def put(self,request,*args,**kwargs):         return self.update(request,*args,**kwargs)     def delete(self,request,*args,**kwargs):         return self.destroy(request,*args,**kwargs)

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使用generics 下ListCreateAPIView,RetrieveUpdateDestroyAPIView#

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from rest_framework.generics import ListCreateAPIView,RetrieveUpdateDestroyAPIView class PublishView(ListCreateAPIView):     queryset=models.Publish.objects.all()     serializer_class=PublishSerializers   class PublishDetailView(RetrieveUpdateDestroyAPIView):     queryset=models.Publish.objects.all()     serializer_class=PublishSerializers

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使用ModelViewSet#

路由：

url(r'^publish/$', views.PublishView.as_view({'get':'list','post':'create'})),
url(r'^publish/(?P<pk>\d+)/$', views.PublishView.as_view({'get':'retrieve','put':'update','delete':'destroy'})),

视图：

from rest_framework.viewsets import ModelViewSet
class PublishView(ModelViewSet):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers